@vinh1978, whenever you try something new suggested by some member and yet are unable to fix the problem then when you report back (after trying) you are expected to provide new problem reporting files (it is written clearly in FAQ thread for gen_debug). Why submit new files everytime you try changing something? Coz, if you change the files many other things also change and they help keep track of how close we are from fixing the problem. Without new files after change, it is like shooting in the darkness and hoping to hit the bull's eye. Hope you understand.
Regards